Biff hit homeruns every year he played. Four times he hit 12, twice he hit 15 and other years Biff hit 6, 11, 19, and 20 homeruns. What was the mean number of homeruns that Biff hit per year? How did you find this?

12 is the mean

Step-by-step explanation: Just find the middle number

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

the image of (6, 9) under a dilation is (4, 6). the scale factor is